Preloading apparatus for adjusting load and method of reinforcing foundation using the same
AssigneeKorea Institute of Civil Engineering and Building Technology
InventorsYoung Chan You, Ki Sun Choi, Hyun Jee Lee
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Abstract
The present invention relates to a preloading apparatus and a method of reinforcing a foundation using the same, wherein, in a preloading method used for remodeling construction in which an extension of a building, such as an apartment, is required, the preloading apparatus allows adjustment of a preloading load, such as addition of a preloading load, to be performed when loss of the preloading load occurs and allows the new pile to effectively share a load applied before and after an extension of a building so that reinforcement efficiency is increased, and thus a load is adjustable economically.
Claims13
A preloading apparatus for adjusting a load, comprising:
- a new footing which is separate from and not in contact with an existing footing and constructed in the ground;
- an upper supporting plate which is integrated with an existing slab and an existing vertical part, which are formed on the existing footing, and formed above the new footing;
- and
- a loading unit installed between the new footing and the upper supporting plate,
- wherein, when the loading unit is operated, the upper supporting plate connected with the existing vertical part and the existing slab is used as a reaction bed so that a preloading load is applied to a new pile of the new footing, and thus the new pile shares an existing load and an extension load applied before and after an extension of a building through the existing vertical part and the existing slab so as to adjust the preload, and
- the loading unit is installed between the new footing and the upper supporting plate to serve to apply a preloading load to the new pile and adjusts the preloading load by repeatedly adding a preloading load at different times.
A method of reinforcing a foundation using a preloading apparatus, comprising:
- (a) constructing a new pile in the ground to be separate from and not in contact with an existing footing and integrating the new pile with a new footing;
- (b) integrating an upper supporting plate with an existing slab and an existing vertical part, which are formed in the existing footing, to be positioned above the new footing;
- and
- (c) installing a loading unit between the new footing and the upper supporting plate and operating the loading unit to apply a preloading load to the new pile of the new footing by using the upper supporting plate, which is connected with the existing vertical part and the existing slab, as a reaction bed,
- wherein, in operation (c), since the loading unit is installed between the new footing and the upper supporting plate, the loading unit allows the preloading load to be adjusted by repeatedly adding a preloading load at different times.
Dependencies are inferred from the claim text.